Update backend address

snippets-frontend/app/[snippet_id]/page.tsx

@@ -3,7 +3,7 @@ import {ArrowLeft, ArrowUpRight, FileCode2, RefreshCw, Terminal} from 'lucide-re
 import {languageLabel, rawSnippetUrl} from '@/lib/snippet-utils'
 import {SnippetEditor} from '@/components/snippet-editor'
 
-const API_BASE = 'http://127.0.0.1:6868'
+const API_BASE = 'https://snippets.rtast.cn'
 
 type Snippet = { createdAt?: string; filename: string; content: string }